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Square coppered groove hole drilling method

A drilling method and copper groove technology, which is applied in the direction of boring/drilling, drilling/drilling equipment, metal processing equipment, etc., can solve the problem that the size and shape of the slot cannot meet the customer's quality requirements, the quality of the hidden danger is large, and the slot Offset and other issues, to achieve the effect of saving costs, saving enterprise costs, and ensuring machining accuracy

Inactive Publication Date: 2018-02-23
SHENGHUA ELECTRONICS HUIYANG
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Problems solved by technology

In this process, a CNC gong groove process is added, and the gong hole needs to be positioned twice, which will easily lead to the deviation of the groove hole and cause a great quality risk. At the same time, an additional process will increase the cost by about 10 yuan per square meter.
For this kind of square hole with copper slot, there is another way to drill it on a drilling machine at one time, but the corner position of the drilled slot hole is irregular, such as figure 1 As shown, the size and shape of the slot cannot meet the quality requirements of customers

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  • Square coppered groove hole drilling method

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Embodiment Construction

[0012] In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below in conjunction with specific embodiments.

[0013] see figure 1 , the square of the present invention has the copper slot hole drilling method, is to drill four guide holes earlier on the four corners of the square slot hole, then drills the elliptical slot hole with a drill bit equal to the slot width, and uses the last Use a drill bit tangent to the two sides of the corner to drill a round hole for edge trimming. This drilling method can achieve the ideal effect of a square slot hole, and all steps are completed on the drilling machine, which can be completed in one positioning, effectively avoiding two Various problems caused by secondary positioning errors.

[0014] In the specific implementation, first of all, according to the design size of the copper slot hole, select a suitable drill tip, generally choose a drill tip of 0.5-0.6 m...

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Abstract

The invention provides a method for drilling square holes with copper slots. The method for drilling square holes with copper slots includes the following steps: (1) pre-drilling round holes on the four corners of the copper slots according to the design size of the copper slots; (3) Select a drill that can be tangent to both sides of the corner of the elliptical slot to drill round holes to trim the corners of the elliptical slot in turn. The invention is aimed at PCB square holes with copper slots, which can realize one-stop drilling, improve production efficiency, and save enterprise costs; at the same time, it also avoids the deviation caused by the secondary positioning of holes on the same board, ensuring that all apertures on the same board Drilling at one time ensures the processing accuracy and production quality.

Description

technical field [0001] The invention relates to the technical field of circuit board production. Background technique [0002] In the existing printed circuit board manufacturing process, for square copper slot holes, the usual method is to drill the base hole after cutting the substrate, then transfer to the CNC process to drill the square slot hole, and finally transfer to electroplating and copper plating. In this process, a CNC gong groove process is added, and the gong hole needs to be positioned twice, which will easily lead to the deviation of the groove hole and cause great quality hazards. At the same time, an additional process will increase the cost by about 10 yuan per square meter. For this kind of square hole with copper slot, there is another way to drill it on a drilling machine at one time, but the corner position of the drilled slot hole is irregular, such as figure 1 As shown, the size and shape of the slot cannot meet the quality requirements of customer...

Claims

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Application Information

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IPC IPC(8): B23B35/00B23B41/00
CPCB23B35/00B23B41/00
Inventor 刘庚新万磊杨艳兰秦俊王云峰
Owner SHENGHUA ELECTRONICS HUIYANG
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